Add protobuffer and model type for syncing custom search engines. Includes all boilerplate helper...

chrome/browser/sync/protocol/nigori_specifics.proto

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Sync protocol datatype extension for nigori keys.
 
 // Update proto_value_conversions{.h,.cc,_unittest.cc} if you change
 // any fields in this file.
 
 syntax = "proto2";
@@ skipping 28 matching lines @@
   // Passwords are always encrypted, so we don't need a field here.
   optional bool encrypt_bookmarks = 3;
   optional bool encrypt_preferences = 4;
   optional bool encrypt_autofill_profile = 5;
   optional bool encrypt_autofill = 6;
   optional bool encrypt_themes = 7;
   optional bool encrypt_typed_urls = 8;
   optional bool encrypt_extensions = 9;
   optional bool encrypt_sessions = 10;
   optional bool encrypt_apps = 11;
+  optional bool encrypt_search_engines = 12;
 }
 
 extend EntitySpecifics {
   optional NigoriSpecifics nigori = 47745;
 }